Interpretation of augered cast in place pile capacity using static loading tests
Interpretation of augered cast in place pile capacity using static loading tests
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使用静载试验解释螺旋灌注桩的承载力
DOI：
10.1179/1937525514y.0000000003
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
T. M. Evans
中科院分区：
文献类型：
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作者：
A. Stuedlein;S. C. Reddy;T. M. Evans
摘要：仪器静载试验是桩基合理工程设计的有效工具。无论是否使用仪器，都可以花费相当大的精力来确定在加载试验期间开发的解释故障负载，并且适当容量的确定通常取决于监管审查和讨论，这可能会由于大量可用的解释方法和可能产生的解释容量的大范围而变得复杂。本文着重讨论了螺旋灌注桩破坏荷载解释的差异，并试图确定哪些方法适合于解释螺旋灌注桩，哪些方法不适合解释螺旋灌注桩。首先，对各种能力解释方法进行了审查，重点是国际建筑规范（）中引用的那些方法。然后，描述了用于说明解释能力差异的ACIP桩病例历史数据库，随后介绍了结果差异。对几种失效载荷解释方法的使用提出了赞成和反对的建议。本文强调了对失效载荷的解释以及对位移这一关键性能度量的特定方法的结果的重要性。
Abstract Instrumented static loading tests present an effective tool for appropriate engineering of piled foundations. Whether instrumented or not, considerable effort can be expended to determine the interpreted failure load developed during the loading test, and the determination of an appropriate capacity is often subject to regulatory review and discussion, which may be complicated by the large number of interpretation methods available and the large range in interpreted capacities that could result. This paper focuses on the differences in the interpreted failure load for augered cast in place (ACIP) piles and seeks to determine which methods are suitable and which methods are inappropriate for the interpretation of ACIP piles. First, a review of various capacity interpretation methods is provided with emphasis on those methods cited in the International Building Code (). Then, an ACIP pile case history database used to illustrate differences in interpreted capacity is described, followed by the presentation of the resulting differences. Recommendations for and against the use of several failure load interpretation methods are made. This paper emphasizes the importance of both the interpretation of the failure load as well as the consequence of a particular methodology on displacement – a critical performance measure.